hi.. i have a 1986 mercedes 300e and i been having problems with my transmission flaring from 2 to 3 gear for a long time. i adjusted the modular with two turns clockwise it help a little bit but, the flare is still there a little i also change the transmission fluid and i didnt see any metal shaving or nothing my question is what do i do next thanks for the help.

You might want to pull the rubber tube off the modulator to see if there's any transmission fluid leaking past the diaphragm. Mine was bad, causing the 2-3 slip as you previously described; so, I don't know if any amount of adjustment would have helped me. It only takes a minute to do if you've got some long needle nose pliers. It might be a cheap fix.

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1993 400E, 256,000 miles (totaled)
1994 E420, 200,000+ miles
1995 E420, 201,000 miles

ok.. but what if transmission fluid is leaking past the diagram whats next.

If transmission fluid is leaking past the diaphragm (e,g., you see it run out the vacuum hose when you pull it off the modulator), then I think you will need to replace the modulator. On my car, a half-quart of transmission fluid had actually been sucked up the vacuum line and into the intake. If the diaphragm is leaking, then you're probably not getting an accurate vacuum signal to your transmission and it could affect your shifts. This may not be the problem in your case, but I thought I would point it out as a possible easy fix. Best of luck.

This came from a 722 repair manual:

Quote:

Transmission Slips During 2-3 Upshift Or Slips Initially, Then Grabs Hold Check modulating pressure and adjust (if necessary). Check for temperature throttle installation (if equipped). Valve body worn or damaged. Replace valve body (if necessary). Replace inner plates of clutch K-1 or recondition clutch (if necessary). Check front cover Teflon ring.

__________________
1993 400E, 256,000 miles (totaled)
1994 E420, 200,000+ miles
1995 E420, 201,000 miles